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electromagnets can be strengthened by____.?
A. having an aluminum core in coil
B. having more coils around the core
C. increasing the current in the coils
D. all of the above
E. (B and C)
3 Answers
Relevance
- 6 years ago
B&C are correct-(option E)
Having aluminium coil weakens the magnetic strength.
Instead you can use a soft iron core to increase magnetic strength
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